A must for fans of the Foo Fighters, particularly fans who don’t mind seeing members of the band chainsawed in half, Studio 666 is an enjoyably schlocky comedy-horror. Dave Grohl gamely hams it up as a man possessed – first by an-out-of control ego, and later by the forces of darkness during a recording session at a mansion steeped in bloody rock’n’roll history. The running time is an issue – a punchy seven-inch single approach would have been preferable, rather than this jam session of a screenplay, which doesn’t know how to end. But the tonal blend of goofy and gory is oddly endearing.